diff --git a/classes/Collection/Batch.class.php b/classes/Collection/Batch.class.php
index 4931975e2..ccc4ac2d0 100644
--- a/classes/Collection/Batch.class.php
+++ b/classes/Collection/Batch.class.php
@@ -98,11 +98,12 @@ class Doctrine_Collection_Batch extends Doctrine_Collection {
 
             $c = count($a);
 
+            $pk     = $this->table->getPrimaryKeys();
             $query  = $this->table->getQuery()." WHERE ";
-            $query .= ($c > 1)?"id IN (":"id = ";
+            $query .= ($c > 1)?$pk[0]." IN (":$pk[0]." = ";
             $query .= substr(str_repeat("?, ",count($a)),0,-2);
-            $query .= ($c > 1)?")":"";
-            $query .= " ORDER BY id ASC";
+            $query .= ($c > 1)?") ORDER BY ".$pk[0]." ASC":"";
+
 
             $stmt  = $this->table->getSession()->execute($query,array_values($a));